Camera Calibration Method Based on Self-made 3D Target

A camera calibration algorithm based on self-made target is proposedin this paper, which can solve the difficulty of making high precision 3Dtarget. Theself-made target consists of two intersecting chess board. With the classic scalemethod, the 3D coordinates of selected points in the target were derived from thedistance matrix. The element in distance matrix is the distance between every twopoints, which can be obtained by measurement. The spatial location precision ofpoints in the target was ensured by measurement instead of manufacturing, whichreduced the production cost and the requirements for the production accuracygreatly. Camera calibration was completed using 3D target based method. It canbe further extended to the applications where the target cannot be produced. Theexperimental results show the validity of this method.